#include <iostream>

using namespace std;

class Point{
public: 
    Point(){x=y=0;}
    Point(int a, int b):x(a),y(b){}  
    void display() {cout<<"x="<<x<<",y="<<y<<endl;}
private:
    int x,y;
 };

int main()
{
    Point m;
    m.display();

    Point n(1,2);
    n.display();

    int i;
    cin>>i;

    return 0;
}